Question

【題目】Seeing their teacher _______ into the classroom, they stopped _______ at once.
A.walk, talking
B.entering, to talk
C.walking, to talk
D.walking, talking

Answer 1

【答案】D
【解析】句意：看見(jiàn)他們的老師走進(jìn)教室，他們馬上停止了說(shuō)話(huà)。see sb do sth看見(jiàn)某人做過(guò)某事；see sb doing sth看見(jiàn)某人在做某事；enter是及物動(dòng)詞，不與into搭配。stop doing sth停止做某事。stop to do sth停下來(lái)去做某事。根據(jù)句意可知選D。